Furnace burner



April 21, 1931- F. x. HAMBERGER FURNAGE BURNER Filed June 20, 1929 CilPatented Apr. 21, 1931 FRANK X. HAMBRE-GER, OF BUFFALO, NEW' YORK.

FUR-NACE BURNER Application filed .Tune 20,

This invention relates to improvements in gas burners which have beenparticularly de signed for use in furnaces, boilers and like heatingappliances.

VOneof its objects is the provision of an elhcient burner of thischaracter which has been designed to produce a maximum amount of heatwith a minimum of fuel consumption, and whose burner elements arek soconstructed as to produce a combustible mixture for obtaining a veryhigh degree of it.

Another object of the invention is to provide the burner elements withcombined means for introducing secondary air at the base of the flame-jets and for deflecting such jets against the furnace-walls.

1n the accompanying drawings Figure 1 is a top plan view of my improvedburner showing the same installed in a furnace. Figure 2 is an enlargedsectional elevation of one of the burner elements. Figure 3 is anenlarged fragmentary cross section taken on line 3 3, Figure 2.

Similar characters of reference indicate corresponding parts throughoutthe several views.

By way of example, my improved burner has been shown in connection witha furnace 10 having a heating chamber 11 containing an opening 12normally closed by a door 13. To facilitate the installation of theburner through the opening of the furnace-chamber, it is composed of twosections each including a pipe or manifold 14: arranged to extend alongone side wall of said chamber and partially along the rear wall thereofin the man ner shown in Figure 1. Rising from this pipe at suitableintervals are nipples 15 to which the upright burner-elements or jets 16are joined. The pipes 14 are connected to the service gas supply lineand are provided with controlling-cocks 17.

Each burner element preferably consists of al conical body 18 having acorrespondingly shaped mixing chamber 19 whose larger or lower endconstitutes an inlet for receiving the gas and air and whose smaller orupper end serves as the outlet or discharge fo-r the combustiblemixture. ,Fitted in the inlet end of the mixing chamber and extendingdia- 23 through which the gasis admittedy to the fair to produce ahighly combnstiblemixture.

1929.. Serial No. 372,365.

metrically across the same is a bridge piece :2O which provides openingson either side thereof for the passage of primary air into said chamber,such air supply being'received below the grates of the furnace and itbeing 5 desirable to have both the lower draft and the chimney draftpartiallyopen at all times to obtain the best results. This bridge barmay be detachably securedto the conical body 18 by screws 21 or' othersuitable fastenings and it has a..v threaded opening 22 therein forfastening the body to the nipple 15, said opening terminating at itsupper end in an orilice mixing chamber 19. G

Applied tothe discharge end of each burner element is a combined flamedeflector and supplementary mixing chamber for introducing asecondaryair supply into the flame issuing from the burner. This device consistsof a 7 substantially tubular body 24. disposed crosswise of the burnerelement at aslight angle to its vertical axis, as seen in Figure 2, andAat its underside is provided with a collar 25 for detaclia-blyconnecting it to the tipA of the burner element. It will be noted fromFigure 1 that the secondary air supplytubes 24 are disposed` atsubstantially right angles to the furnace-walls with their `inlet endsQffor the admission of secondary air facing downwardly and inwardlytoward the center of the furnace-chamber and` their outlet ends facingslightly upward and termina-ting in flamedeflectors 27 which projectoutwardly from the top andadj oining side walls of said tubes. Q Thesecondary air tubes 24 are approxii mately elliptical in cross section,as shown in Figure 3, and as the mixture of gas and pri.- mary air isadmitted into these tubes from the burner-bodieslS, those elementsfollow they curvature ofthe inner wallsof the tubes, taking an upwardand inward` course and effectively commingling Vwith lthe secondary Thedeflectors-QT at the discharge ends of the secondaryair tubesy serve todirectthe flames outwardly and laterally against the furnacewalls.

I claim as my invention l' A gas bumeof'the Character described.; in"

comprising a burner-body containing a mixing chamber having an inlet forthe gas and primary air at its lower end and an outlet at I its upperend and a tubular member applied transversely of the outlet end of theburnerbody and inclined relatively to the axis thereof, the lower end ofsaid member forming an inlet for the admission of secondary air over theoutlet end of said burner-body and its m upper end terminating in aflame-deflector,

the bore of said tubular member flaring outwardly from its lower inletend to its deflector-terminating upper end.

2. A gas burner of the character described, l5 comprisingl alnirner-body containing a. mixing chamber haring an inlet tor the gasand primary air and an outlet, and a tubular member disposedtransversely over tbe outlet end of said Inn-mfr-body and inclinedupwardly, the bore of said member com'erging vtrom its I upper to itslower end. the lower end of said j member at one side of the burner-bodyconstituting an inlet for secondary air and the flared upperend of saidmember on the opposite side of said burner-body constituting a deflectorfor directing the llame laterally from the tubular member.

3. A gas burner for furnaces and the like, comprising a manifold pipeadapted for disposition in the furnace and connected with a source ofgas pressure, nipples connected to said manifold, upright luirner-bodiesapplied to said nipples and containing conical-shaped mixing chamberseach having an inlet for the gas and primary air at its flared end and amixture outlet at its contracted end, and a tubular .member mounted onthe outlet end of each lmrner-body transversely thereof and inclinedrelatively to the. axis oit' its mixing,r 40 chamber, the bore of saidmember converging from its upper to its lower end, the lower convergingend of said tubular member at one side ofthe mixture outlet forming aninlet for secondary air and the upper flared end thereof at the otherside. of said mixture outlet terminating in a flamc-defleetor.

4. A gas burner of the character described, comprising ay substantiallytruste-conical burner-body containing a correspondingly shaped mixingchamber of uniform taper from end to end thereof and havingr an airinlet at its flared end and a mixture outlet at its converging end, abridge bar arranged transversely of the burner-body at the flared endthereof and containing an opening for connecting said body to a gassupply nipple, and a tubular member applied to the tapered end of saidburner-body transversely thereof` and inclined relatively to the axisthereof',

one end of said tubular member forming an inlet for secondary air overthe outlet end of the burner-body and its other end terminating beyondsaid outlet end in an upwardly inclined flame deflector.

FRANK X, HMBERGER.

